self-luminosityn.
/ˌsɛlfˌl(j)uːmᵻˈnɒsᵻti/, U.S. /ˌsɛlfˌluməˈnɑsədi/ Chiefly Astronomy.
The property of naturally producing and emitting light, as distinguished from reflecting light.
ΘΚΠ
the world > matter > light > light emitted under particular conditions > [noun] > phosphorescence
phosphorescence1770
phosphorism1775
self-luminosity1841
the world > animals > animal body > general parts > [noun] > organ emitting light > characteristic of emitting light
self-luminosity1841
luminosity1871
the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun]
brightness1674
self-luminosity1841
illumination1863
luminosity1898
illuminance1943
luminance1950
irradiance1956
1841 Monthly Notices Royal Astron. Soc. 10 Dec. 126 A further argument in favour of their [sc. shooting stars] cometary origin is derived from their trains, and their apparent self-luminosity.
1870 Nature 24 Mar. 533/1 The self-luminosity of the Corona.
1901 Nature 4 July 244 Bodies like radium that exhibit self-luminosity in the dark.
1940 E. N. Harvey Living Light ii. 87 Fish are the highest group of animals in which self-luminosity is known.
2008 Science 28 Nov. 1350/1 For massive planets, this self-luminosity can dominate over their stellar insolation for hundreds of millions or billions of years.
This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022).
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n.1841